<template>
  <el-row class="login-container" justify="center" :align="'middle'">
    <el-card style="max-width: 480px;">
      <template #header>
        <div class="card-header">
          <img :src="imgUrl" alt="">
        </div>
      </template>
      <div class="jump-link">
        <el-link type="primary" @click="handleChange">{{ formType ? '返回登录' : '注册账号' }}</el-link>
      </div>
      <el-form 
      ref="loginFormRef"
      :model="loginForm" 
      style="max-width: 600px;"
      class="demo-ruleForm"
      :rules="rules"
      >
        <el-form-item prop="userName">
          <el-input v-model="loginForm.userName" placeholder="手机号" :prefix-icon="UserFilled"></el-input>
        </el-form-item>
        <el-form-item prop="passWord">
          <el-input v-model="loginForm.passWord" type="password" placeholder="密码" :prefix-icon="Lock"></el-input>
        </el-form-item>
        <el-form-item v-if="formType" prop="validCode">
          <el-input v-model="loginForm.validCode" placeholder="验证码" :prefix-icon="Lock">
            <template #append>
              <span @click="countdownChange" style="cursor: pointer;">{{ countdown.validText }}</span>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" :style="{ width: '100%'}" @click="submitForm(loginFormRef)">
              {{ formType ? '注册账号' : '登录' }}
          </el-button>
        </el-form-item>
      </el-form>
    </el-card>
  </el-row>
</template>

<script setup>
import { computed, reactive, ref, toRaw } from "vue"
import { UserFilled, Lock } from '@element-plus/icons-vue';
import {getCode, userAuthentication, login, menuPermissions} from '../../api'
import { ElMessage } from "element-plus";
import { useRouter } from "vue-router";
import { useStore } from "vuex";


const imgUrl = new URL('../../../public/login-head.png', import.meta.url).href

const loginFormRef = ref()

const router = useRouter()

const store = useStore()

const routerList = computed(() => {
  return store.state.menu.routerList
})

// 表单的初始数据
const loginForm = reactive({
  userName:'',
  passWord:'',
  validCode:''
})

// 账号校验规则
const validateUser = (rule, value, callback) => {
  // 不能为空
  if (value === '') {
    callback(new Error('请输入账号'))
  } else {
    const phoneReg = /^1(3[0-9]|4[01456879]|5[0-35-9]|6[2567]|7[0-8]|8[0-9]|9[0-35-9])\d{8}$/
    phoneReg.test(value) ? callback() : callback(new Error('手机号格式错误'))
  }
}

// 密码校验规则
const validatePass = (rule, value, callback) => {
  if (value === '') {
    callback(new Error('请输入密码'))
  } else {
    const reg = /^[a-zA-Z0-9_-]{4,16}$/
    reg.test(value) ? callback() : callback(new Error('密码格式错误，需要4-16位字符'))
  }
}

// 表单校验
const rules = reactive({
  userName: [{ validator: validateUser, trigger: 'blur' }],
  passWord: [{ validator: validatePass, trigger: 'blur' }],
})

// 切换表单（0登录1注册）
const formType = ref(0)

// 点击切换登录和注册
const handleChange = ()=>{
  formType.value = formType.value ? 0 : 1
}

// 发送短信
const countdown = reactive({
  validText: "获取验证码",
  time:60
})

let flag = false
const countdownChange = () => {
  // 如果是以及发送验证码，则不处理
  if (flag) return
  // 判断手机号是否正确
  const phoneReg = /^1(3[0-9]|4[01456879]|5[0-35-9]|6[2567]|7[0-8]|8[0-9]|9[0-35-9])\d{8}$/
  if (!loginForm.userName || !phoneReg.test(loginForm.userName)) {
    return ElMessage({
      message: '请检查手机号是否正确',
      type: 'warning',
    })
  }
  
  // 定时器
  const timer = setInterval(() => {
    if (countdown.time <= 0) {
      countdown.time = 60
      countdown.validText = `获取验证码`
      flag = false
      clearInterval(timer)
    } else {
      countdown.time -= 1
      countdown.validText = `剩余${countdown.time}s`
    }
  }, 1000)
  flag = true
  getCode({ tel: loginForm.userName }).then(({ data }) => {
    console.log(data, "data")
    if (data.code === 10000) {
      ElMessage.success("发送成功")
    }
  })
}

// 表单提交
const submitForm = async (formEl) => {
  if (!formEl) return
  // 手动触发表单校验
  await formEl.validate((valid, fields) => {
    if (valid) {
      console.log('submit!')
      // 注册页面
      if (formType.value) {
        userAuthentication(loginForm).then(({ data }) => {
          if (data.code === 10000) {
            ElMessage.success("注册成功，请登录")
            formType.value = 0
          }
        })
      } else {// 登录页面
        console.log('进行登录操作')
        login(loginForm).then(({ data }) => {
          if (data.code === 10000) {
            ElMessage.success("登录成功")
            // 将token和用户信息缓存到浏览器’
            localStorage.setItem('pz_token', data.data.token)
            localStorage.setItem('pz_userInfo', JSON.stringify(data.data.userInfo))
            // 通过menuPermissions拿到菜单权限
            menuPermissions().then(({ data }) => {
              store.commit('dynamicMenu', data.data)
              toRaw(routerList.value).forEach(item => {
                router.addRoute('main',item)
              });
              router.push('/')
            })
            // router.push('/')
          }
        })
      }
    } else {
      console.log('error submit!', fields)
    }
  })
}
</script>


<style lang="less" scoped>
:deep(.el-card__header) {
    padding: 0
  }
  .login-container {
    height: 100%;
    .card-header{
      background-color: #899fe1;
      img {
        width: 430px;
      }
    }
    .jump-link {
      text-align: right;
      margin-bottom: 10px;
    }
  }
</style>